The original Q100s were 8:1 reduction, which you could get in 201 rpm or 328 rpm, then they added the Q100H, which was 260 rpm and 12:1 ratio. They probably took the 328 rpm one and just changed the gears to get 260 rpm with higher torque. Later, all variants seem to have become available in all speeds, which confused me at the time, but I don't know how much of that was just marketing and misunderstanding. Also, I don't think the figures of 201 rpm, 260 rpm and 328 rpm are actual ones. I think they just relate to 15 mph and 20 mph markets with 26" and 20" wheels, so approximate. I never measured one. I must do that some day. It seems to be imposible that Every model from every manufacture's motor that BMSBattery sold had an exactly 201 rpm version, and the Bafang BPMs were actually speed coded, and every time you ordered one, you got a different speed code and , of course, different actual speed.Problem is, with two other bikes, I want to keep a standard battery between all of them ( 36v 13Ah Hailong H1). Shame about the XF07, although I notice Woosh use it in their kits. I had read somewhere else that the XF07 was a bit weak (it may have been you!).
Other than taking a punt on that TBK-100AD I now feel a bit stuck, unless......
BMSbattery list Q100H 36v. 350w in 260rpm. " Reduction Ratio 12:6"
or Q100 36v. 250-350w in 260rpm "Rated speed 8.1 Reduction Ratio 16" (no colon but assume 1:6?).
More confusion!
Edit - I think I've worked it out The Q100 description should read something like "reduction ratio for 325rpm is 8:2. Reduction ratio for 201 rpm is 12:6. " Perhaps someone in the Orient has fat fingers like me. Lord knows what the 260rpm version is though - 12:6 at a guess.
take what I said about XF07 with a pinch of salt. That was only my own experience. I bought them from a slightly devious Chinese seller, so what MXUS told me might be right. They said that the lower quality ones were for the Chinese market and the European market ones were better. Who to believe?? The only way to be sure is to test one.
